A joint demonstration by the two companies at embedded world 2025 showcases SEGGER’s Ozone debugger and J-Trace probes, which allow embedded-systems developers to gain detailed insight into firmware operation, down to the instruction level. Compatible with the output of almost any toolchain, Ozone is both a debugger and a performance analyzer. It includes all common debugging controls, and it expands on them with features for advanced analysis, such as instruction tracing and code profiling. 

Building on SEGGER’s recent support for Rust in Ozone, Ferrous Systems was able to seamlessly integrate Ozone with Ferrocene—the first open-source Rust toolchain qualified for safety- and mission-critical applications in accordance with ISO 26262 (for automotive use), IEC 61508 (for industrial use), and ISO 62304 (for medical use).

Ferrous Systems’s test application is built on RTIC, an open-source, hardware-accelerated, real-time operating system (RTOS) written in Rust. The application also uses the highly efficient deferred-formatting framework "defmt", produced by Ferrous Systems as part of their open-source Knurling-rs project. 

“We’ve always known that defmt offers compelling efficiency improvements when compared to legacy string-based approaches to logging,” says Jonathan Pallant, Senior Embedded Engineer at Ferrous Systems. “We’re delighted to be working with SEGGER to demonstrate this efficiency with SEGGER’s Ozone debugger and J-Trace probes.”

“Given the growing interest in Rust for commercial systems, adding support to Ozone was an easy decision for us,” explains Johannes Lask, Product Manager at SEGGER. “It was great seeing how straightforward it was for Ferrous Systems to integrate their Ferrocene toolchain with both Ozone and J-Trace for this demo.”

For more information on this demonstration, visit Ferrous Systems in Hall 4, Booth 4-402, and SEGGER in Hall 4, Booth 4-367, at embedded world 2025.

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About Ferrous Systems

Ferrous Systems is a Berlin-based consultancy that has extensive experience working with Rust. They provide training courses for programmers interested in furthering their Rust skills, as well as customized training programs for corporate software development teams. Their flagship product Ferrocene is the first open-source Rust compiler toolchain qualified for safety- and mission-critical applications, such as those found in the automotive, industrial, and medical areas. For more information, please visit the Ferrous Systems website, or contact them directly at ferrous-systems.com/contact/.